Sam Bisbee

Sam Bisbee

Partner atF-Prime CapitalCambridge

Sam Bisbee is a Venture Partner at F-Prime and Chief Security Officer at Threat Stack, with a background in technology, cybersecurity, and operations. He joined Threat Stack in 2014 and previously worked at Cloudant.

What Sam can write

Writes checks of$1M to $30M+
Comes in atPre-seed, Seed, Series A, Series BCan lead the round
Ownership target7-10%At first check
Email the firm[email protected]The firm's own inbox for founders.

F-Prime Capital writes $1M to $30M+ checks, larger than 83% of firms in the atlas.

Bars: how many firms report each check band. Highlighted: F-Prime Capital.

Career

  1. Cloudant · member
  2. Threat Stack · Chief Security Officer
    2014-present
  3. F-Prime · Venture Partner
    Now
  4. Cloudant
  5. Threat Stack · Chief Security Officer and Chief Technology Officer
    2014-2021
  6. F-Prime Capital Partners · Venture Partner
    Now
  7. DraftKings Inc. · Vice President of Information Security

Focus

technologycybersecurityoperationsenterprise softwarefinancial technologyfrontier technology

Also at F-Prime Capital

Partners like Sam

At firms with a similar stage, sector and check size.

Alert me when F-Prime Capital is active

One email when Sam's firm raises a fund, adds a partner or shows new activity.

Founders and investors at a Mode VC gathering

Send Mode VC your deck

Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.

Send your deck

Questions

Who is Sam Bisbee?

Sam Bisbee is a Venture Partner at F-Prime and Chief Security Officer at Threat Stack, with a background in technology, cybersecurity, and operations. He joined Threat Stack in 2014 and previously worked at Cloudant.

How much does Sam Bisbee invest?

Sam Bisbee invests through F-Prime Capital, which writes checks of $1M to $30M+ at pre-seed, seed, series a, series b.

How do I pitch Sam Bisbee?

Email [email protected], the firm's inbox for founders, and name Sam in the subject. A warm intro from a founder F-Prime Capital backed works better.

What did Sam Bisbee do before F-Prime Capital?

member at Cloudant; Chief Security Officer at Threat Stack; Cloudant; Chief Security Officer and Chief Technology Officer at Threat Stack; Vice President of Information Security at DraftKings Inc..

Last updated 2026-10-15. Is this you? Ask for a correction.